Manufacture of metal sheets.



E. NORTON.

MANUFACTURE OF METAL SHEETS.

APPLICATION FILED APR.15, 1914.

Patented 0013. 13, 1914.

2 SHEETS-SHEET 1.

M Mu ATTORNEY Prwfl f UUEJD UDUD E. NORTON.

MANUFACTURE OF METAL SHEETS.

APPLICATION FILED APR. 15, 1914.

l, 1 1 3AM. Patnted 001;. 13, 1914.

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uni-55 WITNESSES INVENTOFI Lo 5% WW ATTORNEY v A omen s'rarnsrnrnnirorricn.

EDWIN NORTON, OF FAG-ET WEST, BERMUDA.

MANUFACTURE or METAL snnn'rs.

Specification of Letters Patent. I Pate tedo t 13 1914 Application filedApril 15, 1914. Serial N 0. 831,950.

1 To allwhom it may concern:

Be it known that I, EDWIN NORTON, a citizen of the United-States,residing at Cedar Lodge, Paget West, Island of Bermuda,

' have invented new and useful Improvements in the Manufacture of MetalSheets, of which the following is a specification,

My invention relates to the manufacture of metal sheets.

Theprincipal object of my invention is to produce from a single longheated plate a number of finished sheets of uniform gage by causing. thesheets to be simultaneously rolled in 'separatefinishing mills withoutreheating the metal. Heretofore, so far as I am aware, it has beenproposed to roll an ingot, after it has been uniformly heated to theproper temperature, into a long plate,

which is sheared into shorter plates. These latter plates. are then fedto reducing rolls so that some of the plates are subjected. to

'the cooling action of the atmosphere for a longer time than others. Bymy invention, I propose'to' cause these shorter plates or theirequivalents cut from the same long plate to be transferred from theshears to the reducing rolls at such a rate and under such regulationthat all of the shorter plates will enter the reducing rolls atsubstantially the same time, which'insures that." the shorter platesshall all have substantially the same temperature and that the sheetsissuing from the rolls shall all have the same gage provicled thedifferent setsofreducing rolls are all in the same condition to prgfducesheets of the same gage from plates in uniform condition, this conditionbeing required to secure the best results.

Referring to the accompanying drawing," which shows diagrammatically arolling mill designed to produce metal sheets in accordance with myinvention, 1 showa number of soaking pits 1, in which ingots to berolled into sheets are heated-uniformly to the proper v temperature Theproperly heated ingots are taken from the pits, one at a'time anddelivered to the approachtable 2 in any of the Well known ways. From thetable 2 the-ingot is delivered to the entering table 3 which deliversthe ingot to the universal mill 4:.

" The ingot is delivered from the mill 4 "to the run-out table 5, and isthen given passes back and forth in the mill 1 until it has been reducedto a plate of the desired cross-section and length in a mannerwellkno-wn. The

said plate is ,conveyed by therun-out tablet") thereon until its forwardend engages the stop 8, which prevents further travel of the plate untilthe stop 8 is removed. 9, 10, 11, 12, and 13 are shears arranged toshear the to the shear table 6, which moves the plate said platetransversely while it rests on the shear-table 6. The shear 9 isarranged to shear off-the rear crop end from the plate.

The shear 11 is arranged to divide the plate 1 into halves, allowing foran imperfect portlon to he cut from'the forward end of the plate. Theshear 10 is arranged to divide pose to be explained presently. When thefront half of-the. plate engages the stop 14 the shear 13 cuts off thecrop end therefrom and the shear 12 divides the said half of the plateinto halves.

I have not shown the stops 8 and 14 in dey tail,nor how they may beoperated, as these are matters' which any one skilled in the art cansupply. The stops may be mere blocks, or levers or bars insertible inthe path of the sheet. The stops may be operated by hand, or by othermeans which will readily occur to those familiar with the art. I pre-'fer motors for the stops. s p

Preferably, as soon as the shears9, l0,-

and 11 have severed the plate, thesections severedby the shears 10. and.11 are transferred laterally to the left by the endless chain or similarconveyors .15- and 16, .re-

spectively, driven in any 'desired manner.

' The plate 17 out off by theshearlO is transferred to the enteringtable'18 in line with the tandem train of reducing rolls 19; The

plate 17 is delivered by the table 18 toward the rolls 19 until itsforward end engages the stop 20. The plate 21 is cut off by the 1 shear11 and transferred by the chain car.-

rier-16 to the'entering table 22 in line with the tandem train ofreducing rolls 23. The

-plate 21 is moved toward the rolls 23 until it engages with the stop24. The plate 25 cut 05 by the shear 12 is transferred to the right bythe" endless chain carrier 26 to the entering table 27, by which it ismoved toward the tandem train of rolls 28. until it engages the stop 29.Thelast plate 3Q=is transferred to the right by the endless chaincarrier 31 to the entering table 32-, by which it is moved toward thetandem train of rolls 33 until it engages the stop 3 1.

Preferably the tables 2, 3, 5 and 6 are in a straight line and thetables 18, 22, 27, and 32 are parallel therewith. The frames of theshears 9, 10, and 11 are open toward the left so that the plates 17 and21 may move to the left without interference by the said frames, and theframes of the shears 12 and 13 are open toward the right so that theplates 25 and may move to the right without engagement with the saidframes. The front half of the long plate is fed from the stop 8 to thestop 1-1 in order that the rear end of the said half may clear theShears with open or frame of the shear 11.-

U-shaped frames are old and well known and have, therefore, not beenillustrated.

The plates 17, 21, 25, and 30 are trans ferred from the shear tables soas to reach" their respective trains of rolls simultane-.

ously. This may be accomplished by causing the chain carriers to carrythe plates to their'enterin'g tables 18, 22, 27, and 32 at suchdilferent speedsthat they will all reach their entering tablessimultaneously.

I do not limitmy invention to-any definite means or method of gettingthe'plates to the rolls simultaneously. The stops 20,

'24-, 2 9 and 34 are provided inorder to holdback the plates in casesomeof them should be in position to enter the rolls before the others.In case the plates all travel so as to be ready to enter the rolls atthe same time, the stops might be removed from the path of the plates,or not interposed in their path, as the case may be.

I do not limit my invention to thefprecise type of finishing rolls forthe plates, but I prefer the train of rolls shown in Letters Patent, No.865,055 granted to me on the third day of September, 1907, in whichtrain of rolls the sheets arereduced in each stand of rolls andsimultaneously stretched between consecutive stands of rolls.

After the sheets haye been subjected to the'finishing rolls 19, 23-, 28and 33, they are delivered by the said rolls to the feed tables 35,there being one table 35, in line with each train of rolls. From thetables 35 the sheets may be wound up on the coilers 36 arranged at theends of the tables, 37 indicating the motors for the coilers; Whilethese feed. tables may be of any suitable 7 type, I prefer the airconveyer shown in Letters Patent No. 898,775 granted to me on the 15thday of September, 1908. On the drawings 39 indicates the fan for suchair conveyers.

38 designates motors or mechanism of any preferred type, whetherelectric, steam, hy-

draulic, compressed air, .or the like by which i the stops hereinbeforementioned, may be moved into and out of the paths of the plates. 1

By arranging the conveying and rolling mechanisms on opposite sides ofthe shear table 5, I materially shorten the distance which the shortplates made by the shears 12 and 13 have to travel in order to reachtheir entering tables and, therefore, prevent unnecessarycooling of theplates; Ishorten the shear table 5, since, if the plates 25 and 30 wereto be transferred toward the left, their transferring mechanism wouldhave to be beyond the coilers 36 for the sheets made from the plates 17,and 21. The sets or groups of conveying and. sheet rolling appa'-- ratuson opposite sides of the shear table 5 are duplicates. The rearconveyers 15 and 26 of each set or group are longer than the conveyers1'6 and 31, so that the rolls 19 and 28 are farther away from the sheartable 5 than the rolls 23 and 33. The driving mechanisms 40 for thetrains of rolls in each of said sets or groups are located in the spacebetween the two trains of rolls, and between, the longer chain conveyerand the fans 39. By this arrangement the width of the mill plant is verymuch reduced. Shears 41 may be employed to cut the sheets into lengthswhen it is not deheated ingot or the like to a long plate,

means for severing the said plate into shorter plates, reducing rollsarranged laterally of the severing means and at different dlstancestherefrom, and meansfor delivermg the shorter plates from the severingmeans to the reducing rolls substantially simultaneously. v A

' 3. In a rolling m1ll, means for reducing a heated ingot or the like,to a long plate, a

shear table arranged to receive the said plate, means for stopping thetravel of the plate on the table, two sets of shears on'the table, oneset opening toward one side-of the i table and the other set toward theother side of the table, means for transferring the short plates formedby the first-set of shears laterally in the direction toward which thesaid set of shears open, a second stop for the plate when released fromthe first stop, the second stop being located so as to allow the rearend of the plate formed by the last shear in thefirst set to clear theframe of the said last shear, means for transferring the shorter platesformed by the second set of shears in the opposite direction from thatin Which the plates formed by the first set of shears were fed, andseparate reducingrolls arranged to ,receive the several shorter plates.

4. The method ofmanufacturing metal shee s which consists in reducing aheated ingot or the liketo a long-plate, severing the plate into shorterplates, transferring the shorter plates laterally to separate reducingmeans, and causing the said shorter plates to reducing rolls, and meansfor shearing th 1 sameinto any desired lengths.

6. The method of manufacturing metal sheets. which consists in reducinga heated ingot or the like to along plate, severing the plate into"shorter plates, transferring the shorter plates laterally to separatereduoiiig means, causing the said shorter plates to be reduced inthickness at substantially the same time, and coiling the finishedsheets into rolls.

7 .-The method of manufacturing metal sheets Which consists in reducinga heated ingot or the like to a long plate, severing the plate intoshorter plates, transferring the shorter plates toseparate reducingmeans,

and causingthe said shorter plates to be subjected to the --action ofthesaid reducing means substantially at the same time.

8. The method of manufacturing metalsheets which consists in reducing aheatedingot or the like to a long plate, severing the plate into shortersections, transferring the shorter sections at diiferent speeds tosepa-' rate reducing means located at difi'er'ent dis- I tances from thesevering means so that the sectionsshall reach the reducing means atsubstantially the same time, and subjecting the sections to. the actionof'the reducing means at substantially the same time.

Signed at Hamilton Bermuda this 1st day. I

ofApril 1914:. I

I v EDWIN NORTON.

Witnessesi EDWIN G. RUSSELL,

W. MAXWELL GREENE.

